帮帮我,要不然真的笨s了 TEST4-17,15

17.   One state adds a 7 percent sales tax to the price of most products purchased within its jurisdiction. This tax, therefore, if viewed as tax on income, has the reverse effect of the federal income tax: the lower the income, the higher the annual percentage rate at which the income is taxed.

The conclusion above would be properly drawn if which of the following were assumed as a premise?

(A) The amount of money citizens spend on products subject to the state tax tends to be equal across income levels.

(B) The federal income tax favors citizens with high incomes, whereas the state sales tax favors citizens with low incomes.

(C) Citizens with low annual incomes can afford to pay a relatively higher percentage of their incomes in state sales tax, since their federal income tax is relatively low.

(D) The lower a state’s sales tax, the more it will tend to redistribute income from the more affluent citizens to the rest of society.（A）

(E) Citizens who fail to earn federally taxable income are also exempt from the state sales tax.

这道题我压根就没读懂,什么意思呢?

15.   The cost of producing radios in Country Q is ten percent less than the cost of producing radios in Country Y. Even after transportation fees and tariff charges are added, it is still cheaper for a company to import radios from Country Q to Country Y than to produce radios in Country Y.

The statements above, if true, best support which of the following assertions?

(A) Labor costs in Country Q are ten percent below those in Country Y.

(B) Importing radios from Country Q to Country Y will eliminate ten percent of the manufacturing jobs in Country Y.

(C) The tariff on a radio imported from Country Q to Country Y is less than ten percent of the cost of manufacturing the radio in Country Y.

(D) The fee for transporting a radio from Country Q to Country Y is more than ten percent of the cost of manufacturing the radio in Country Q.（C）

(E) It takes ten percent less time to manufacture a radio in Country Q than it does in Country Y.

问题:a为什么不对?

17:

有一个州向在售的商品增收7％的营业税，因此，如果把这些税看成是所得税的话，就会对联邦所得税产生反作用：收入越低，所交税的比例那一部分越大。

问assumption。

所有收入水平的市民花在该州税收的商品上的钱是相同的。构成了原文的假设。

15、

是归纳题;

A是推不出来的。原文只说了Q国的生产成本比Y国低10％。A中的劳工成本无法得出。